Binary Stochastic Representations for Large Multi-class Classification
KAUST Grant NumberOSR-2015-CRG4-2639
Online Publication Date2017-10-24
Print Publication Date2017
Permanent link to this recordhttp://hdl.handle.net/10754/626677
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AbstractClassification with a large number of classes is a key problem in machine learning and corresponds to many real-world applications like tagging of images or textual documents in social networks. If one-vs-all methods usually reach top performance in this context, these approaches suffer of a high inference complexity, linear w.r.t. the number of categories. Different models based on the notion of binary codes have been proposed to overcome this limitation, achieving in a sublinear inference complexity. But they a priori need to decide which binary code to associate to which category before learning using more or less complex heuristics. We propose a new end-to-end model which aims at simultaneously learning to associate binary codes with categories, but also learning to map inputs to binary codes. This approach called Deep Stochastic Neural Codes (DSNC) keeps the sublinear inference complexity but do not need any a priori tuning. Experimental results on different datasets show the effectiveness of the approach w.r.t. baseline methods.
CitationGerald T, Baskiotis N, Denoyer L (2017) Binary Stochastic Representations for Large Multi-class Classification. Lecture Notes in Computer Science: 155–165. Available: http://dx.doi.org/10.1007/978-3-319-70087-8_17.
SponsorsThis publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-2015-CRG4-2639.